Because suggested limits for aggregate gradation vary depending on the type of mix design being developed, only a few examples are given hereâ a complete listing of aggregate gradation requirements are given in the various chapters discussing mix design procedures for the various HMA mix types: dense-graded HMA, gap-graded HMA, and open-graded
Hot Mix Asphalt (HMA): From Mix Design to Production (1.2 Course Description. Hot Mix Asphalt (HMA) is the main road paving material. More than 90% of roads and highways in North America are paved with HMA; therefore, many civil engineers work in the design, production, quality control/assurance, and construction of HMA. HMA Mix Designs (Superpave icon) HMA Mix Designs (Superpave icon) This process will be done at Reg 1 11/4/2019 ional Labs using data from mix designs submitted for approval. - Description Tab o Fill in Mix ID: User must create a unique Mix ID, based upon the facility number and using the year this mix was initially approved. Selecting The Right Mix Selecting the Right Mix for Your Project Local Agency Programs HMA Selection Guidelines Target Air Voids – Mixes are specified with 4% design AV – Can be reduced to 3% for 13A and 36A mixes Add a note to the HMA Application Table – Reduce shoulder mixes to 2.5% AV
460.2.7 HMA Mixture Design Revise 460.2.7(1) to specify the design methods, test procedures, and mixture requirements for SMA mix designs. (1) For each HMA mixture type used under the contract, develop and submit an asphaltic mixture design according to CMM 8-66 and conforming to the requirements of table 460-1 and table 460-2. Ensure
Hot Mix Asphalts 101 - New Jersey
Selecting The Right Mix
(1)This section describes HMA mixture design, providing and maintaining a quality management program for HMA mixtures, and constructing HMA pavement. Unless specifically indicated otherwise, references within 460 to HMA also apply to WMA and SMA. 460.2 Materials 460.2.1 General Revise 460.2.1 to specify target air voids for SMA mix designs. Asphalt Mix Design - Foundation Performance